Cooling shroud for a post-manufacture glass container thermal strengthening station
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United States of America Patent
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Sep 15, 2015
Grant Date -
Dec 1, 2011
app pub date -
May 24, 2011
filing date -
May 25, 2010
priority date (Note) -
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Abstract
An apparatus for manufacturing strengthened glass containers, and more particularly the construction and operation of a cooling shroud in an apparatus for thermally strengthening glass containers in a glass container manufacturing line at a location intermediate the hot end and the cold end. Glass containers formed at an I. S. machine are conveyed through a special tempering Lehr that heats them uniformly to a high temperature that is short of temperatures at which they may become deformed. Subsequently, the glass containers are rapidly thermally strengthened in a cooling station in which the outer and inner surfaces including all areas of the glass containers are simultaneously cooled to a temperature below the Strain Point of the glass used in the glass containers, with the cooling shrouds being used to cool the outer surfaces of the glass containers.
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